Example usage for java.util.concurrent BlockingQueue clear

Introduction

In this page you can find the example usage for java.util.concurrent BlockingQueue clear.

Prototype

void clear();

Source Link

Document

Removes all of the elements from this collection (optional operation).

Usage

From source file:com.espertech.esper.core.thread.ThreadingServiceImpl.java

private void stopPool(ThreadPoolExecutor threadPool, BlockingQueue<Runnable> queue, String name) {
    if (log.isInfoEnabled()) {
        log.info("Shutting down pool " + name);
    }//from   w w w  .  ja v a 2s. c  o  m

    queue.clear();

    threadPool.shutdown();
    try {
        threadPool.awaitTermination(10, TimeUnit.SECONDS);
    } catch (InterruptedException e) {
        log.error("Interruped awaiting termination", e);
    }
}

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From source file:org.jboss.as.test.integration.logging.syslog.SyslogHandlerTestCase.java

/**
 * Tests that only messages on specific level or higher level are logged to syslog.
 *///from   ww w  . j a  v a  2 s  .  co  m
@Test
public void testLogOnSpecificLevel() throws Exception {
    final BlockingQueue<SyslogServerEventIF> queue = BlockedSyslogServerEventHandler.getQueue();
    executeOperation(Operations.createWriteAttributeOperation(SYSLOG_HANDLER_ADDR, "level", "ERROR"));
    queue.clear();
    makeLogs();
    testLog(queue, Level.ERROR);
    testLog(queue, Level.FATAL);
    Assert.assertTrue("No other message was expected in syslog.", queue.isEmpty());
}

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From source file:org.jboss.as.test.integration.logging.syslog.SyslogHandlerTestCase.java

/**
 * Tests that messages on all levels are logged, when level="TRACE" in syslog handler.
 */// w  w w .j a va  2s.  com
@Test
public void testAllLevelLogs() throws Exception {
    final BlockingQueue<SyslogServerEventIF> queue = BlockedSyslogServerEventHandler.getQueue();
    executeOperation(Operations.createWriteAttributeOperation(SYSLOG_HANDLER_ADDR, "level", "TRACE"));
    queue.clear();
    makeLogs();
    for (Level level : LoggingServiceActivator.LOG_LEVELS) {
        testLog(queue, level);
    }
    Assert.assertTrue("No other message was expected in syslog.", queue.isEmpty());
}

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From source file:org.apache.camel.impl.DefaultServicePool.java

protected void doStop() throws Exception {
    if (log.isDebugEnabled()) {
        log.debug("Stopping service pool: " + this);
    }//from   w  ww . j  a  v  a2  s. co  m
    for (BlockingQueue<Service> entry : pool.values()) {
        Collection<Service> values = new ArrayList<Service>();
        entry.drainTo(values);
        ServiceHelper.stopServices(values);
        entry.clear();
    }
    pool.clear();
}

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From source file:org.opencastproject.videosegmenter.impl.VideoSegmenterServiceImpl.java

/**
 * Fills the look ahead buffer with the next <code>STABILITY_THRESHOLD</code> images.
 * //  w w  w.  j a  va 2  s  .c  om
 * @param queue
 *          the buffer
 * @param currentBuffer
 *          the current buffer
 * @param dsh
 *          the data source handler
 * @throws IOException
 *           if reading from the data source fails
 */
private void fillLookAheadBuffer(BlockingQueue<Buffer> queue, Buffer currentBuffer, FrameGrabber dsh)
        throws IOException {
    queue.clear();
    queue.add(currentBuffer);
    for (int i = 0; i < stabilityThreshold - 1; i++) {
        Buffer b = dsh.getBuffer();
        if (b != null && !b.isEOM())
            queue.add(b);
        else
            return;
    }
}

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